| (19) |
 |
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(11) |
EP 2 206 552 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
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09.03.2011 Bulletin 2011/10 |
| (43) |
Date of publication A2: |
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14.07.2010 Bulletin 2010/28 |
| (22) |
Date of filing: 18.12.2003 |
| (27) |
Previously filed application:
18.12.2003 US 40805 P |
|
| (51) |
International Patent Classification (IPC):
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| (84) |
Designated Contracting States: |
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AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR |
| (30) |
Priority: |
20.12.2002 US 434728 P
|
| (62) |
Application number of the earlier application in accordance with Art. 76 EPC: |
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03814265.9 / 1581339 |
| (71) |
Applicants: |
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- Honda Giken Kogyo Kabushiki Kaisha
Tokyo (JP)
- Symyx Technologies, Inc.
Santa Clara, CA 95051 (US)
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| (72) |
Inventors: |
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- Hagemeyer, Alfred
Sunnyvale, CA 94086 (US)
- Brooks, Christopher; James
Columbus, OH 43212 (US)
- Carhart, Raymond, F.
Cupertino, CA 95014 (US)
- Yaccato, Karin
South San Francisco, CA 94107 (US)
- Lesik, Andreas
62-500, Konin (PL)
|
| (74) |
Representative: Berglund, Magnus |
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Ström & Gulliksson AB
Studentgatan 1
203 13 Malmö
203 13 Malmö (SE) |
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| (54) |
Method for the preparation of catalysts for hydrogen generation |
(57) A method of preparing a platinum-and sodium-containing catalyst comprising :
impregnating all non-platinum-and non-sodium-containing components of the catalyst
composition onto a surface to form a first surface;
impregnating a platinum-containing solution to the first surface to form a platinum-containing
surface;
calcining the platinum-containing surface to form a calcined platinum containing coating;
impregnating a sodium-containing solution to the calcined platinum-containing coating
to form a second surface; and
drying the second surface.